Searcharxiv⌕ Search

arXiv subjects

R. Mansouri

Publications and source records attributed to R. Mansouri.

20 records · Page 2Linked to original sources

A model universe with variable dimension: Expansion as decrumpling

We propose a model universe, in which the dimension of the space is a continuous variable, which can take any real positive number. The dynamics leads to a model in which the universe has no singularity. The difference between our model and the standard Friedman-Robertson-Walker models become effective for times much before the presently accepted age of the universe.

gr-qc↗

Tunneling in Anisotropic Cosmological Models

Tunneling rate is investigated in homogenous and anisotropic cosmologies. The calculations is done by two methods: Euclidean and Hamiltonian approaches. It is found that the probability decreases exponentialy as anisotropy is increased.

gr-qc↗